Let's ignore the false light in the tunnel ... worse oddities came first ... not the lags in the 350 every time a /2 passed ... just at the mid-point ... (this was the 390 ... i had no lags) No, it's our UK's ole AWS. One station on my express run from Milton K rings twice for one signal in the station ... another has a signal, but AWS is silent ... in the far right track close to Euston there is a signal ... and AWS is silent. Do beta testers not turn AWS on ? Are there no checklists ? Pilots have them. Surgeons have them. Some dev leads use them. Does the QA manager have a line item for UK keystroke combos Sh-NumEnter and Ctrl-NumEnter ? Try this laxity in telco or banking or risk management or health insurance or car insurance, all fields were i have served as a dev team lead or consultant dev. Oh yes, these are the kind of keybindngs that i rely upon to drive train and bus and tram and car sims on PS5 using a BT keyboard given my worsening palsy.
To be fair, "Phantom AWS" alarms have been a thing since Brighton Main Line in TSW2. You get an AWS alarm, but the next 4 or 5 signals you pass are all green... So you finish the timetable 10 minutes late because you slowed down to 30/40mph for a double-yellow that never existed, crawling through entire blocks for nothing. Sometimes the signal will change to green at the last second as you approach (had that on 5S80 on WCMLoS today) but 99% of the time it's bugged.
Actually it goes back to the original GWE. There's at least one point on the fast lines you get an AWS alarm for a non-applicable speed reduction.